Its a David Brown 990 implematic 52hp and weighs nearly 2 ton itself so im thinking it will work
When this tractor came into production in 1965 ish it had an optional extra an exhaust brake so maybe i might try and source one of them

I priced one of the 8500 pound winches on the Goodwinch website and by the time I add in the extras and vat it's costing the guts of 850pounds.. the shipping over the sea to Dublin alone is nearly 150 pounds.. A lot of money, but then I'm weighing that against the cost of a new clutch every year.. And the fact that the winch Is a good heavy duty one with nearly 100ft of dyneema rope on it and a rig that slips over ur towbar!